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| author | Alistair Francis <alistair.francis@wdc.com> | 2020-02-10 10:36:21 -0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-08-27 08:17:42 -0700 |
| commit | 5b6113d62efabb123db433b14adddd4a5fb6b7ec (patch) | |
| tree | 1959bde3e74c6e491bbce89f0f8e1806647c9225 /sysdeps/riscv/nptl | |
| parent | 07598d76006faec6c60a9d86bda44dcb81b3a743 (diff) | |
| download | glibc-5b6113d62efabb123db433b14adddd4a5fb6b7ec.zip glibc-5b6113d62efabb123db433b14adddd4a5fb6b7ec.tar.gz glibc-5b6113d62efabb123db433b14adddd4a5fb6b7ec.tar.bz2 | |
RISC-V: Support the 32-bit ABI implementation
This patch adds the ABI implementation for 32-bit RISC-V. It contains
the Linux-specific and RISC-V architecture code.
Reviewed-by: Maciej W. Rozycki <macro@wdc.com>
Diffstat (limited to 'sysdeps/riscv/nptl')
| -rw-r--r-- | sysdeps/riscv/nptl/bits/pthreadtypes-arch.h | 26 | ||||
| -rw-r--r-- | sysdeps/riscv/nptl/bits/struct_rwlock.h | 27 | ||||
| -rw-r--r-- | sysdeps/riscv/nptl/pthread-offsets.h | 17 |
3 files changed, 55 insertions, 15 deletions
diff --git a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h index c3c72d6..8a602e8 100644 --- a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h @@ -21,18 +21,22 @@ #include <bits/endian.h> -#if __riscv_xlen == 64 -# define __SIZEOF_PTHREAD_ATTR_T 56 -# define __SIZEOF_PTHREAD_MUTEX_T 40 -# define __SIZEOF_PTHREAD_MUTEXATTR_T 4 -# define __SIZEOF_PTHREAD_COND_T 48 -# define __SIZEOF_PTHREAD_CONDATTR_T 4 -# define __SIZEOF_PTHREAD_RWLOCK_T 56 -# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 -# define __SIZEOF_PTHREAD_BARRIER_T 32 -# define __SIZEOF_PTHREAD_BARRIERATTR_T 4 +#define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +#define __SIZEOF_PTHREAD_COND_T 48 +#define __SIZEOF_PTHREAD_CONDATTR_T 4 +#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +#define __SIZEOF_PTHREAD_BARRIERATTR_T 4 + +#if __WORDSIZE == 64 +# define __SIZEOF_PTHREAD_ATTR_T 56 +# define __SIZEOF_PTHREAD_MUTEX_T 40 +# define __SIZEOF_PTHREAD_RWLOCK_T 56 +# define __SIZEOF_PTHREAD_BARRIER_T 32 #else -# error "rv32i-based systems are not supported" +# define __SIZEOF_PTHREAD_ATTR_T 32 +# define __SIZEOF_PTHREAD_MUTEX_T 32 +# define __SIZEOF_PTHREAD_RWLOCK_T 48 +# define __SIZEOF_PTHREAD_BARRIER_T 20 #endif #define __LOCK_ALIGNMENT diff --git a/sysdeps/riscv/nptl/bits/struct_rwlock.h b/sysdeps/riscv/nptl/bits/struct_rwlock.h index acfaa75..dc467d4 100644 --- a/sysdeps/riscv/nptl/bits/struct_rwlock.h +++ b/sysdeps/riscv/nptl/bits/struct_rwlock.h @@ -15,7 +15,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #ifndef _RWLOCK_INTERNAL_H #define _RWLOCK_INTERNAL_H @@ -32,14 +32,37 @@ struct __pthread_rwlock_arch_t unsigned int __writers_futex; unsigned int __pad3; unsigned int __pad4; +#if __WORDSIZE == 64 int __cur_writer; int __shared; unsigned long int __pad1; unsigned long int __pad2; unsigned int __flags; +#else +# if __BYTE_ORDER == __BIG_ENDIAN + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + unsigned char __flags; +# else + unsigned char __flags; + unsigned char __shared; + unsigned char __pad1; + unsigned char __pad2; +# endif + int __cur_writer; +#endif }; -#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ +#if __WORDSIZE == 64 +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags +#elif __BYTE_ORDER == __BIG_ENDIAN +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0 +#else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0 +#endif #endif diff --git a/sysdeps/riscv/nptl/pthread-offsets.h b/sysdeps/riscv/nptl/pthread-offsets.h index 31f0587..d76c6cf 100644 --- a/sysdeps/riscv/nptl/pthread-offsets.h +++ b/sysdeps/riscv/nptl/pthread-offsets.h @@ -1,3 +1,16 @@ -#define __PTHREAD_MUTEX_KIND_OFFSET 16 +#if __WORDSIZE == 64 +# define __PTHREAD_MUTEX_KIND_OFFSET 16 +#else +# define __PTHREAD_MUTEX_KIND_OFFSET 12 +#endif -#define __PTHREAD_RWLOCK_FLAGS_OFFSET 48 + +#if __WORDSIZE == 64 +# define __PTHREAD_RWLOCK_FLAGS_OFFSET 48 +#else +# if __BYTE_ORDER == __BIG_ENDIAN +# define __PTHREAD_RWLOCK_FLAGS_OFFSET 27 +# else +# define __PTHREAD_RWLOCK_FLAGS_OFFSET 24 +# endif +#endif |